Accord.MachineLearning.BaseBatches.GetEnumerator C# (CSharp) Method

        public virtual IEnumerator<TBatch> GetEnumerator()
        {
            TBatch batch = Init();

            if (Shuffle == ShuffleMethod.None)
                PrepareBatch(Vector.Range(Inputs.Length));
            else // if (Shuffle == ShuffleMethod.OnlyOnce || ShuffleMethod.EveryEpoch)
                PrepareBatch(Vector.Sample(Inputs.Length));

            this.CurrentIteration = 0;
            this.CurrentEpoch = 0;
            this.CurrentSample = 0;
            this.CurrentMiniBatch = 0;

            while (true)
            {
                for (int i = 0; i < batch.Inputs.Length; i++)
                {
                    PutCurrentSampleInMiniBatch(batch, i);

                    CurrentSample++;

                    if (CurrentSample >= NumberOfSamples)
                    {
                        CurrentEpoch++;
                        CurrentSample = 0;

                        if (Shuffle == ShuffleMethod.EveryEpoch)
                            PrepareBatch(Vector.Sample(Inputs.Length));
                    }
                }

                batch.Index = CurrentMiniBatch;

                yield return batch;

                CurrentMiniBatch++;
                if (CurrentMiniBatch >= NumberOfMiniBatches)
                    CurrentMiniBatch = 0;

                CurrentIteration++;

                if (MaxEpochs > 0 && CurrentEpoch > MaxEpochs)
                    yield break;

                if (MaxIterations > 0 && CurrentIteration > MaxIterations)
                    yield break;
            }
        }